Chapter 10 Interfaces
ZyWALL/USG Series User’s Guide
351
10.12.1 Configuring a User-Defined Trunk
Click Configuration > Network > Interface > Trunk, in the User Configuration table click the
Add (or Edit) icon to open the following screen. Use this screen to create or edit a WAN trunk
entry.
Figure 248 Configuration > Network > Interface > Trunk > Add (or Edit)
Each field is described in the table below.
# This field is a sequential value, and it is not associated with any interface.
Name This field displays the label that you specified to identify the trunk.
Algorithm This field displays the load balancing method the trunk is set to use.
Apply Click this button to save your changes to the ZyWALL/USG.
Reset Click this button to return the screen to its last-saved settings.
Table 124 Configuration > Network > Interface > Trunk (continued)
LABEL DESCRIPTION
Table 125 Configuration > Network > Interface > Trunk > Add (or Edit)
LABEL DESCRIPTION
Name This is read-only if you are editing an existing trunk. When adding a new trunk, enter a
descriptive name for this trunk. You may use 1-31 alphanumeric characters,
underscores (
_), or dashes (-), but the first character cannot be a number. This value is
case-sensitive.
Load Balancing
Algorithm
Select a load balancing method to use from the drop-down list box.
Select Weighted Round Robin to balance the traffic load between interfaces based on
their respective weights. An interface with a larger weight gets more chances to
transmit traffic than an interface with a smaller weight. For example, if the weight ratio
of wan1 and wan2 interfaces is 2:1, the ZyWALL/USG chooses wan1 for 2 sessions’
traffic and wan2 for 1 session’s traffic in each round of 3 new sessions.
Select Least Load First to send new session traffic through the least utilized trunk
member.
Select Spillover to send network traffic through the first interface in the group
member list until there is enough traffic that the second interface needs to be used
(and so on).
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